Wehavenotfoundlifeonanyotherplanetsyet教学目标1.认读和掌握下列单词和短语：none,environment,solar,system,group,universe,light,impossible,out,communicate2.能理解现在完成时描述的过去经历的事情。重点难点考点易错点Howtoreadandwriteastoryaboutspacetravel.教学过程一、前置练习，积累知识Step1.WarmingUp1.Howmanyplanetsarethereinoursolarsystem?2.Isthereanylifeonotherplanets?3.Putthewordsandexpressionsintheboxinorder:small–large.galaxy,planet,solarsystem,star,universe二、情境激趣，导入新课Step2.ReadingCheck(√)thetruesentences.1.Theearthisastar.□2.Thesunisastar.□3.Thereismorethanonegalaxyintheuniverse.□4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.□5.Scientistshavereceivedmanymessagesfromspace.□6.Spaceshipshavevisitedmostoftheuniverse.□三、自主学习，合作探究Step3.根据课文补全短文ScientiststhinkthattherehasbeenlifeonEarthforyears.,wehaven’tfoundlifeonplanetsyet.SevenotherplanetstheSunalsogoaroundtheSunbutofthemhasanenvironmentwithair.Thereare________starsinourgalaxyandourSunisonlythem.Theyarealongwayandtheirlighthastravelledformanyyearstoreachus.Itisimpossible_____howlargetheuniverseis.Scientistshave____spaceshipstotheplanet_____,buthasdiscoveredanylifeinyet.Areweinspace?Wedon’tknowyet.四、归纳总结，提升能力Step4SummaryWhathaveyoulearnedtoday?五、当堂检测，检查效果一、根据汉语提示完成句子。1.我们没有一个人去过火星。ushasbeentoMars..2.“神舟5号”在太空中围绕地球飞行了14圈。“Shenzhou5”circledtheEarthfourteentimes.3.-乘火车去北京得多长时间？-两天多。-HowlongittoreachBeijingbytrain?-twodays.4.你多久去俱乐部一次？doyougototheclub?5.太阳和所有围绕它旋转的行星叫做太阳系。Thesunanditsplanetsthesolarsystem.6.地球是行星，它围绕太阳运转。TheEarthisaplanetandit_____________theSun.7.为什么不把书带回来？____________________thebook?8.没有一个学生去过英国。_______thestudents__________England.9.完成今天的作业不容易。_______________today’shomework.10.我刚读过有关火星的书。I____________books_____Mars.Homework:1.Translatethefollowingphrases2.DoStudyingPla教学反思：
